Hello,
1: You know the menu bar on top with all the menus with the apps, check if there is an option when running the VM that there is a camera option in any of them.
2: Check if you can download and install the camera driver for that model
3: Check if the device manager in windows can detect the camera.
4: Check if the camera app in windows can use the camera.
5: Contact support at support.microsoft.com/contact us.
6: It would be great if you can share which VM and what camera you are using to further up!